Philips Semiconductors
Product data
24-bit level shifting bus exchange switch
with 12-bit output enables
CBTD16211
FEATURES
•
5Ω switch connection between two ports
•
TTL compatible control input levels
•
Designed to be used in level shifting applications
•
Package options include shrink small outline (SSOP) and
thin shrink small outline (TSSOP)
DESCRIPTION
The CBTD16211 provides 24 bits of high-speed TTL-compatible bus
switching. The low on-state resistance of the switch allows
connections to be made with minimal propagation delay.
A diode to V
CC
is integrated in the circuit to allow for level shifting
between 5 V inputs and 3.3 V outputs.
The device is organized as a dual 12-bit bus switch with separate
output-enable (OE) inputs. It can be used as two 10-bit bus switches
or as one 20-bit bus switch. When OE is low, the associated 10-bit
bus switch is on, and port A is connected to port B. When OE is
high, the switch is open, and a high-impedance state exists between
the ports.
The CBTD16211 is characterized for operation from –40 to +85
°C.
•
ESD protection exceeds 1000 V CDM per JESD22-C101
•
Latch-up testing is done to JESDEC Standard JESD78 which
exceeds 100 mA
QUICK REFERENCE DATA
SYMBOL
t
PLH
t
PHL
C
IN
C
OUT
I
CC
PARAMETER
Propagation delay
An to Yn
Input capacitance
Output capacitance
Total supply current
CONDITIONS
T
amb
= 25
°C;
GND = 0 V
C
L
= 50 pF; V
CC
= 5 V
V
I
= 0 V or V
CC
Outputs disabled; V
O
= 0 V or V
CC
Outputs disabled; V
CC
= 5.5 V
TYPICAL
0.25
4.3
6.9
3.0
UNIT
ns
pF
pF
µA
ORDERING INFORMATION
PACKAGES
56-Pin Plastic SSOP Type III
56-Pin Plastic TSSOP Type II
TEMPERATURE RANGE
–40 to +85
°C
–40 to +85
°C
ORDER CODE
CBTD16211DL
CBTD16211DGG
DWG NUMBER
SOT371-1
SOT364-1
FUNCTION TABLE
INPUTS
1OE
L
L
H
H
2OE
L
H
L
H
OUTPUTS
1A, 1B
1A = 1B
1A = 1B
Z
Z
2A, 2B
2A = 2B
LOGIC SYMBOL
2
1A1
54
1B1
14
42
1B12
Z
2A = 2B
Z
1A12
H = High voltage level
L = Low voltage level
Z = High impedance “off ” state
56
1OE
15
2A1
41
2B1
28
2A12
29
2B12
55
2OE
SA00510
2001 Jun 13
2
853-2260 26502
ICS [ INTEGRATED CIRCUIT SYSTEMS ]
